What is qalqalah?

Qalqalah is a concept in Tajweed, the art of reciting the Quran, referring to the echoing sound produced when pronouncing certain consonants. The letters associated with qalqalah are ق (qaf), ط (ta), ب (ba), ج (jeem), and د (dal). When these letters appear with a sukoon (no vowel), they create a bouncing or echoing effect, enhancing the clarity of the recitation. This technique helps to distinguish these letters and adds rhythm to the recitation.